Question

A seed spouted and grew 2/3 of a foot in 3 months. what was its rate of growth

Answer 1

The rate of growth of sprout seed in 3 months is 1.14%

Explanation:

Given as:

The length of seed sprout grew = foot

The time period for sprout grew = 3 month

Let The rate of sprout grew = r%

Let The initial length of seed = l foot

So, The length of seed sprout grew after 3 months = × l foot

Now, According to question

The length of seed sprout grew after n months =

Or , × l =

Or, =

Or, 1 + =

Or, = 1.14

∴ r = 1.14 ×100 = 114

So, The rate of growth = r = 1.14 %

Hence The rate of growth of sprout seed in 3 months is 1.14%

Answer 2

0.2222 of growth in a month

Explanation:

2/3feet / 3 months